Nottingham Trent University

About: Nottingham Trent University is a education organization based out in Nottingham, United Kingdom. It is known for research contribution in the topics: Population & Context (language use). The organization has 4702 authors who have published 12862 publications receiving 307430 citations. The organization is also known as: NTU & Trent Polytechnic.

Video Game Addiction: Past, Present and Future

Abstract: Gaming addiction has become a topic of increasing research interest. The last decade has witnessed a significant increase in the number of empirical studies examining various aspects of problematic video game play and video game addiction. This paper begins with a brief past history of how research into video game addiction has changed over the last three decades (i.e., the 1980s, 1990s and 2000s). It then examines more thoroughly the contemporary research literature by analyzing the (i) prevalence of problematic video game use and video game addiction, (ii) negative consequences of excessive video game use, (iii) factors associated with problematic video game use and video game addiction, and (iv) the treatment of problematic video game use and video game addiction. The paper concludes by looking at the trends in the field and a somewhat theoretical examination of what the future of video game addiction might be.

Ordinal Methodology in the Analysis of Likert Scales

Abstract: Likert scales are widely used in survey studies for attitude measuring. In particular, the questionnaires propagated by the SERVQUAL approach are based on Likert scales. Though the problem of attitude suggests an ordinal interpretation of Likert scales, attitude survey data are often evaluated with techniques designed for cardinal measurements. The present paper discusses the interpretation of scales for attitude measuring and gives a survey of data analysis techniques under the proper ordinal understanding.

Quality by Experimental Design

Abstract: THE PHILOSOPHY OF EXPERIMENTATION Why Design Experiments? Organizing the Experiment The Neglected Response Variable STATISTICAL EXPERIMENTAL DESIGN The Factorial 2-Level Design General Factorial Designs Fractional Factorials at 2-Levels Multi-Level Designs 3-Level Designs Randomized Block and Latin Square Nested Designs Evolutionary Operation SORTING THE SIGNAL FROM THE NOISE Simple Analysis Analysis of Means by Using the Variance YATES Analysis Analysis of 2k and 2k-p Designs Matrix Algebra Least Squares Analysis Putting ANOVA and Least Squares to Work ANOVA for Blocked and Nested Designs THE DERIVATION OF EMPIRICAL EQUATIONS FROM STATISTICALLY DESIGNED EXPERIMENTS A Case History of an Experimental Investigation UTILIZATION OF EMPIRICAL EQUATIONS Robust Design Monte Carlo Simulation and Tolerance Design Case History Completed: The Utilization of the Equation Statistical Tables Index

Symmetric Stable Laws and Stable‐Like Jump‐Diffusions

Abstract: Asymptotic expansions are obtained for finite-dimensional symmetric stable distributions. They are used to prove the existence of continuous transition probability densities of stable and stable-like jump-diffusions, and to construct local multiplicative asymptotics and global two-sided estimates for these densities. As a consequence, the distribution of the first passage times for stable jump-diffusions is estimated and the integral test for the limsup behaviour of their sample paths as $t\to 0$ is provided. 1991 Mathematics Subject Classification: 60E07, 60G17, 60J35, 47D07.